chore(cli): update Bun to 1.4.0

.changeset/update-bun-1-4.md

@@ -0,0 +1,5 @@
+---
+"@kilocode/cli": patch
+---
+
+Build the CLI with Bun 1.4 to reduce compiled binary size and build time.

CONTRIBUTING.md

@@ -16,7 +16,7 @@ The Kilo Community is [on Discord](https://kilo.ai/discord).
 
 ## Prerequisites
 
-- **Bun 1.3.14+** — required for all packages.
+- **Bun 1.4.0+** — required for all packages.
 - **Java 21** — required by the JetBrains plugin. The root `bun turbo typecheck` and `bun turbo test:ci` commands include `@kilocode/kilo-jetbrains` and will fail without Java 21.
 
   The preferred way to install Java is via [SDKMAN](https://sdkman.io/install):
@@ -41,7 +41,7 @@ The Kilo Community is [on Discord](https://kilo.ai/discord).
 
 ## Developing Kilo CLI
 
-- **Requirements:** Bun 1.3.14+, Java 21 (see [Prerequisites](#prerequisites) above)
+- **Requirements:** Bun 1.4.0+, Java 21 (see [Prerequisites](#prerequisites) above)
 - Install dependencies and start the CLI from the repo root:
 
   ```bash

bunfig.toml

@@ -2,7 +2,7 @@
 exact = true
 # Keep Kilo's longer supply-chain quarantine while allowing packages that must track coordinated releases.
 minimumReleaseAge = 410520 # seconds (~4.75 days / ~114 hours)
-minimumReleaseAgeExcludes = ["mermaid", "@mermaid-js/parser", "@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish"]
+minimumReleaseAgeExcludes = ["mermaid", "@mermaid-js/parser", "@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish", "@types/bun", "bun-types"] # kilocode_change
 
 [test]
 root = "./do-not-run-tests-from-root"

nix/bun.nix

@@ -14,19 +14,19 @@ let
   sources = {
     "aarch64-linux" = {
       name = "bun-linux-aarch64";
-      hash = "sha256-on/7Y6gxA3WDbg1vZorhf6jY0YuIw3yCHGUzGXOhmjs=";
+      hash = "sha256-SxozLuhhmD65O8/m93D/+U4+MbLDiL2uo8jtNeWO7Q4=";
     };
     "x86_64-linux" = {
       name = "bun-linux-x64";
-      hash = "sha256-lR7iruhV8IWVruxiJSJqKY0/6oOj3NZGXAnLzN9+hI8=";
+      hash = "sha256-LQP7X7g6yLVnrKCigbLOGhoZ1Ij1bClo2Iw/Jekv5FI=";
     };
     "aarch64-darwin" = {
       name = "bun-darwin-aarch64";
-      hash = "sha256-2LliIYKK1vl6x6wKt+lYcjQa92MAHogD6CZ2UsJlJiA=";
+      hash = "sha256-xmnpf2Fk4cluBwF0jbmN+ndJKQjL2DlMdVcTSnNd44E=";
     };
     "x86_64-darwin" = {
       name = "bun-darwin-x64";
-      hash = "sha256-QYPfM3RiPlurMVxUfPoJdFM81FfYa3O2OfeoeXTNZjM=";
+      hash = "sha256-HQIRuPHcmRGCNEaHrRXnLuhvFUhFpff6R3mUzTQd2bA=";
     };
   };
   source =

package.json

@@ -4,7 +4,7 @@
   "description": "AI-powered development tool",
   "private": true,
   "type": "module",
-  "packageManager": "bun@1.3.14",
+  "packageManager": "bun@1.4.0",
   "scripts": {
     "dev": "KILO_CLIENT=cli bun run --cwd packages/opencode --conditions=node src/index.ts",
     "dev:stats": "bun sst shell --stage=production -- bun run --cwd packages/stats/app dev",
@@ -35,7 +35,7 @@
       "@effect/platform-node": "4.0.0-beta.83",
       "@anthropic-ai/sandbox-runtime": "0.0.63",
       "@npmcli/arborist": "9.4.0",
-      "@types/bun": "1.3.14",
+      "@types/bun": "1.4.0",
       "@types/cross-spawn": "6.0.6",
       "@octokit/rest": "22.0.0",
       "@opentui/core": "0.4.5",

packages/containers/bun-node/Dockerfile

@@ -6,7 +6,7 @@ FROM ${REGISTRY}/build/base:24.04
 SHELL ["/bin/bash", "-lc"]
 
 ARG NODE_VERSION=24.4.0
-ARG BUN_VERSION=1.3.14
+ARG BUN_VERSION=1.4.0
 
 ENV BUN_INSTALL=/opt/bun
 ENV PATH=/opt/bun/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

packages/core/src/aisdk.ts

@@ -35,7 +35,7 @@ function wrapSSE(res: Response, ms: number, ctl: AbortController) {
         const id = setTimeout(() => {
           const err = new Error("SSE read timed out")
           ctl.abort(err)
-          void reader.cancel(err)
+          void reader.cancel(err).catch(() => undefined) // kilocode_change - handle Bun 1.4 cancellation rejection
           reject(err)
         }, ms)
 

packages/kilo-docs/pages/contributing/development-environment.md

@@ -16,7 +16,7 @@ This document will help you set up your development environment and understand h
 Before you begin, make sure you have the following installed:
 
 1. **Git** - For version control
-2. **Bun 1.3.14+** - Required for installing dependencies and running scripts
+2. **Bun 1.4.0+** - Required for installing dependencies and running scripts
 3. **Visual Studio Code** - Our recommended IDE for development
 4. **Java 21** - Required only when running JetBrains plugin checks or repo-level checks that include `@kilocode/kilo-jetbrains`
 

packages/kilo-vscode/docs/mercury-next-edit-testing.html

@@ -276,7 +276,7 @@ <h3>Prerequisites</h3>
       <ul>
         <li><strong>VSCode</strong> ≥ 1.105.1 (matches kilocode's <code>engines.vscode</code>)</li>
         <li>
-          <strong>Bun</strong> ≥ 1.3.14 (the build script checks the version) &mdash; install via
+          <strong>Bun</strong> ≥ 1.4.0 (the build script checks the version) &mdash; install via
           <code>brew install bun</code> or <a href="https://bun.sh">bun.sh</a>
         </li>
         <li><strong>GitHub CLI</strong> (<code>gh</code>) &mdash; optional but makes the PR checkout one command</li>

packages/opencode/script/build.ts

@@ -312,15 +312,8 @@ for (const item of targets) {
     // kilocode_change end
     format: "esm",
     minify: true,
-    // kilocode_change start - disable code-splitting to avoid a Bun 1.3.14 codegen bug.
-    // With splitting:true Bun emits cross-chunk re-exports like `import{vn as G9}` whose
-    // binding isn't top-level, so the compiled binary crashes at startup on the baseline
-    // target: "SyntaxError: Exported binding 'G9' needs to refer to a top-level declared
-    // variable." (Bun oven-sh/bun#25621, #5344, #7265; also opencode#23349). Fixed upstream
-    // in Bun#26089, post-1.3.14. Splitting only deduped shared code between the entrypoints;
-    // turning it off inlines per entrypoint and produces a valid binary.
-    splitting: false,
-    // kilocode_change end
+    // Bun 1.4 fixes the cross-chunk re-export codegen bug from Bun 1.3.14.
+    splitting: true, // kilocode_change
     compile: {
       autoloadBunfig: false,
       autoloadDotenv: false,

packages/opencode/src/bun-compat.d.ts

@@ -0,0 +1,12 @@
+// kilocode_change - new file
+// Bun 1.4 narrows NodeJS.Process event overloads.
+declare global {
+  namespace NodeJS {
+    interface Process {
+      on(event: string | symbol, listener: (...args: never[]) => void): this
+      off(event: string | symbol, listener: (...args: never[]) => void): this
+    }
+  }
+}
+
+export {}

packages/opencode/src/provider/provider.ts

@@ -64,7 +64,7 @@ function wrapSSE(res: Response, ms: number, ctl: AbortController) {
         const id = setTimeout(() => {
           const err = new ProviderError.ResponseStreamError("SSE read timed out")
           ctl.abort(err)
-          void reader.cancel(err)
+          void reader.cancel(err).catch(() => undefined) // kilocode_change - handle Bun 1.4 cancellation rejection
           reject(err)
         }, ms)
 

patches/@ff-labs%2Ffff-bun@0.9.4.patch

@@ -29,3 +29,109 @@ index 3454256..6dca25a 100644
 
      if (existsSync(binaryPath)) {
        return binaryPath;
+diff --git a/src/ffi.ts b/src/ffi.ts
+--- a/src/ffi.ts
++++ b/src/ffi.ts
+@@ -328,6 +328,10 @@
+  return new TextEncoder().encode(`${s}\0`);
+ }
+-
++
++function asResult(value: Pointer | bigint | null): Pointer | null {
++  return value as unknown as Pointer | null;
++}
++
+ /**
+  * Convert snake_case keys to camelCase recursively
+  */
+@@ -1121,4 +1126,4 @@
+     minComboCount,
+   );
+-  return parseSearchResult(resultPtr);
++  return parseSearchResult(asResult(resultPtr));
+ }
+@@ -1145,4 +1150,4 @@
+     pageSize,
+   );
+-  return parseSearchResult(resultPtr);
++  return parseSearchResult(asResult(resultPtr));
+ }
+@@ -1168,4 +1173,4 @@
+     pageSize,
+   );
+-  return parseDirSearchResult(resultPtr);
++  return parseDirSearchResult(asResult(resultPtr));
+ }
+@@ -1195,4 +1200,4 @@
+     minComboCount,
+   );
+-  return parseMixedSearchResult(resultPtr);
++  return parseMixedSearchResult(asResult(resultPtr));
+ }
+@@ -1230,4 +1235,4 @@
+     classifyDefinitions,
+   );
+-  return parseGrepResult(resultPtr);
++  return parseGrepResult(asResult(resultPtr));
+ }
+@@ -1265,4 +1270,4 @@
+     classifyDefinitions,
+   );
+-  return parseGrepResult(resultPtr);
++  return parseGrepResult(asResult(resultPtr));
+ }
+@@ -1274,4 +1279,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_scan_files(handle);
+-  return parseVoidResult(resultPtr);
++  return parseVoidResult(asResult(resultPtr));
+ }
+@@ -1291,4 +1296,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_get_base_path(handle);
+-  return parseStringResult(resultPtr);
++  return parseStringResult(asResult(resultPtr));
+ }
+@@ -1336,4 +1341,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_wait_for_scan(handle, BigInt(timeoutMs));
+-  return parseBoolResult(resultPtr);
++  return parseBoolResult(asResult(resultPtr));
+ }
+@@ -1351,4 +1356,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_restart_index(handle, ptr(encodeString(newPath)));
+-  return parseVoidResult(resultPtr);
++  return parseVoidResult(asResult(resultPtr));
+ }
+@@ -1360,4 +1365,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_refresh_git_status(handle);
+-  return parseIntResult(resultPtr);
++  return parseIntResult(asResult(resultPtr));
+ }
+@@ -1377,4 +1382,4 @@
+     ptr(encodeString(filePath)),
+   );
+-  return parseBoolResult(resultPtr);
++  return parseBoolResult(asResult(resultPtr));
+ }
+@@ -1392,4 +1397,4 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_get_historical_query(handle, BigInt(offset));
+-  return parseStringResult(resultPtr);
++  return parseStringResult(asResult(resultPtr));
+ }
+@@ -1306,3 +1311,3 @@
+   const library = loadLibrary();
+   const resultPtr = library.symbols.fff_get_scan_progress(handle);
+-  const envelope = readResultEnvelope(resultPtr);
++  const envelope = readResultEnvelope(asResult(resultPtr));
+@@ -1406,6 +1411,6 @@
+  const library = loadLibrary();
+  const resultPtr = library.symbols.fff_health_check(
+    handle ?? (0 as unknown as Pointer),
+    ptr(encodeString(testPath)),
+  );
+-  return parseJsonResult<unknown>(resultPtr);
++  return parseJsonResult<unknown>(asResult(resultPtr));

script/upstream/package.json

@@ -22,7 +22,7 @@
     "ts-morph": "^24.0.0"
   },
   "devDependencies": {
-    "@types/bun": "1.3.14"
+    "@types/bun": "1.4.0"
   },
   "peerDependencies": {}
 }